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Code Issues Releases Wiki Activity

Multi-stage builds, wheee

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R. Tyler Croy 2018-02-20 14:08:26 -08:00
parent 6c311bc93d
commit 99c0e7adf2
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1 changed files with 23 additions and 11 deletions
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@ -1,26 +1,38 @@
FROM ruby:2.3-alpine
FROM ruby:2.3-alpine as builder
ARG BUILD_PKGS="ruby-dev openssl-dev gcc make libc-dev binutils"
ARG APP_DIR=/webapp
RUN mkdir -p ${APP_DIR}/vendor
WORKDIR ${APP_DIR}
ARG BUILD_PKGS="ruby-dev openssl-dev gcc make libc-dev binutils"
ENV GEM_HOME=${APP_DIR}/vendor/gems
ENV BUNDLE_PATH=${APP_DIR}/vendor/gems
ENV BUNDLE_APP_CONFIG=${APP_DIR}/vendor/gems/.bundle
ENV BUNDLE_DISABLE_SHARED_GEMS=true
RUN mkdir -p ${APP_DIR}/vendor
WORKDIR ${APP_DIR}
ADD Gemfile* ${APP_DIR}/
RUN apk add -U ${BUILD_PKGS} && \
bundle install && \
apk del ${BUILD_PKGS} && \
rm -rf /var/cache/apk/*
# Doing a multi-stage build to reset some stuff for a smaller image
FROM ruby:2.3-alpine
ARG APP_DIR=/webapp
WORKDIR ${APP_DIR}
COPY --from=builder ${APP_DIR} .
ENV GEM_HOME=${APP_DIR}/vendor/gems
ENV BUNDLE_PATH=${APP_DIR}/vendor/gems
ENV BUNDLE_APP_CONFIG=${APP_DIR}/vendor/gems/.bundle
ENV BUNDLE_DISABLE_SHARED_GEMS=true
ADD app/ ${APP_DIR}/app/
ADD config.ru ${APP_DIR}/
ADD views ${APP_DIR}/views/
ADD assets ${APP_DIR}/assets/
RUN apk add -U ${BUILD_PKGS} && \
bundle install --without test && \
apk del ${BUILD_PKGS} && \
rm -rf /var/cache/apk/*
CMD bundle exec puma